Would gladly give 10 stars if I could. I absolutely love this grinder. I use it every day for my coffee. It has not let me down. Simple to use, simple to set the grind level, and very quiet while using. Durable material holds up to daily usage. Very satisfied with this purchase.

Love this grinder. Very precision made, grinds espresso beans into fine powder that I use in an aeropress. Best cup ever from this grinder. Only downside is it's a workout (unless you use a cordless drill).

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The coffee grinder is capable of a wide range of sizes from pour over to espresso but the threading on bottom container can be difficult to line up and feels like effort could have gone into making screwing and unscrewing smoother. It is also pretty easy to accidentally change the grind size mid grind (for me) because the material feels slick, and you have to hold on tight.Overall, this is a very nice product. It feels solid. The handle is nice and spins well. It has yielded some amazing pours with the fine grind. It is nice for our expresso maker to mix in other flavors of coffee since our current machine has a built-in grinder.

I ordered the 7-star burr grinder model so that I can get a very consistent espresso coffee grind for my Gaggia Classic Pro machine. At under $40 (on sale), this is a well engineered and solid all metal precision grinder functionally comparable to the name-brand 7-star burr grinders that sell for $120. The multiple internal bearings allow the grinder spindle to very smoothly spin freely when empty, even at the finest grind setting, and there is no wobbling of the spindle or crank while grinding. The removable crank-top seats deeply and very securely onto the spindle. A spindle locking-notch ensures that a properly closed top is well fastened to the spindle and that the top will not accidentally pop-off while grinding.Details:I needed a small hand grinder so that I could keep my electric Baratza Encore 6-star conical burr grinder fully loaded with my regular French Roast beans and still be able to occasionally precisely fine-grind individual double-shot batches (~18g) of specialty espresso beans. The hand grinder needed to allow easily adjusting the grind settings for each of the different types of specialty beans. This small hand grinder does the job perfectly.The only usage caveat is that the grind selector ring numbering is backwards and setting "0" selects the largest coffee grain size, not the smallest. This may also make it seem as if the small diagram underneath the selector ring is backwards in describing which direction to turn the ring to get a finer grind. You need to select a larger number in order to get a finer grind (i.e. turn the selector ring to the right in a counter-clockwise direction).Settings greater than #32 are finer than what my modified Baratza Encore grinder can produce (the Baratza Encore was custom calibrated for an additional range of "extra fine" espresso grind settings). The grind selector is a 350-degree rotating ring around the grinder with only minor "click-stops" at each setting that are 10-degrees apart. This makes it easy to select "in-between" settings.There is good resistance in moving the selector ring and the ring is at the top of the grinder, all of which makes it unlikely the setting will be accidentally changed while holding the grinder by its middle. The fact that it has a large and precise external selector ring makes it much more convenient to use than grinders that have small selection dials hidden inside the bottom of the grinder, especially if you are frequently switching between different types of specialty beans.The 7-star burr grinder came with 2 different types of brushes and an air-puff blower. The long pencil brush makes it very easy to remove any remaining coffee grinds from the inside burrs and the air-puff blower removes any remaining coffee powder.Note:As one would expect for a 7-star conical burr grinder, any setting above #33 slowly produces such a fine powder that it takes an extremely long time to finish grinding the beans. Even for Turkish coffee, I doubt anyone would realistically need a finer grind beyond setting #33. It is possible the 5-star grinder model may be able to produce grinds faster, even at the higher settings, because the fewer burr teeth allow more room for the beans to flow down and expose a larger individual bean surface into the grinding collar. But the typical tradeoff with fewer burr teeth is faster grinding vs. slightly less overall consistency of the grind.Cons:1) Care needs to be taken when screwing on the bottom metal collecting-cup to avoid jamming its threads.2) This grinder cannot be taken apart for extreme cleaning without appropriate tools (Allen Wrench ?). No dismantling instructions are provided even though they do include a diagram of the internal structure of the grinder (this single-page diagram is the only documentation in the box!).3) COMPLETE LACK of any user documentation in the box. It comes with absolutely no User Guide documentation on how to load, use, or maintain the grinder. IT IS CRUCIAL NOT TO CLEAN THE GRINDER WITH WATER and only use the provided brushes and air-blower, but there is no WARNING about this provided in the box! The only available user documentation is on the Amazon product web site! Though the Amazon Product Description includes an image of a grinding guide, specifying recommended grind settings for various types of coffee brewing, that documentation is not included in the box. I suggest you print or save a copy of the product's Amazon website "Recommended Grinder Settings" image (JPG file) so that you have a reference for future use.4) It only has a maximum 20g bean input capacity (21g is already pushing the limit). I normally make double-shot espresso using 16g to 18g of espresso beans depending on the type of bean. But a triple-shot espresso requires at least 22g to 24g. A triple-shot will require grinding two separate input batches of 11g to 12g.5) After many uses, the metal crank-knob itself can occasionally squeak when turning. A very small drop of olive oil on the knob's bottom gap readily takes care of this annoyance.Summary:A great and affordable all metal precision grinder for double-shot espresso coffee!

This manual coffee grinder is super simple to use. The stainless steel body feels sturdy, and the crank handle turns smoothly without much effort. Figuring out the grind size takes a bit of trial and error, but once you do, it’s easy to adjust.It’s also much quieter than my electric grinder, which is a big plus. The compact size makes it easy to store, and it’s even small enough to pack for travel if you want.!

It doesn't work it's a waste of time and money

It grinds beans with ease, plenty of adjustment and the coffee grinds are always consistent.